from time import sleep

from selenium import webdriver

driver = webdriver.Firefox()
driver.get('https://www.baidu.com/')

sleep(3)

driver.find_element_by_partial_link_text('新闻').click()
sleep(3)


hds = driver.window_handles

driver.switch_to.window(hds[1])
sleep(2)

driver.find_element_by_partial_link_text('军事').click()
sleep(3)

driver.find_element_by_partial_link_text('发动机').click()

driver.close()
sleep(2)

driver.switch_to.window(hds[0])
sleep(2)
#
key_word = driver.find_element_by_id('kw').send_keys('selenium')
key_word = driver.find_element_by_id('su').click()
sleep(3)

driver.quit()